Petite Women esp -- halfway to goal weight wardrobe?

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Hi! I've been using MyFitnessPal for the past 3 months to lose about 20-25 lbs. I'm 5'3" though, so that amount of weight looks like a lot on my small frame. I was at my goal weight for a good part of my twenties, so I'll be a size 6 when I reach my goal. I started at a size 10-12 and I'm halfway to where I want to be. Question? How do I make my clothes look decent or choose new pieces that won't look baggy while I lose the last 12 lbs. I'm not rich here; can't buy a new wardrobe now & another in a few months. (I actually just switched jobs at the same time I started MyFitnessPal, bought a lot of new work clothes and some of them don't look good on me anymore) I'm still wearing my size 10-12, but I'm in a professional job in front of different people giving presentations all the time.. I'm worried I'm starting to look a little bag lady-ish or will soon. What do you do about buying clothes when you are losing but are planning on losing even more?